Custom Soil Resource Report for Logan County, Oklahoma

Transcription

1 United States Department of Agriculture Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Logan County, Oklahoma 310 Angus Ranch Acres September 16, 2014

2 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments ( nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center ( offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist ( cid=nrcs142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means 2

3 for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C or call (800) (voice) or (202) (TDD). USDA is an equal opportunity provider and employer. 3

4 Contents Preface...2 How Soil Surveys Are Made...5 Soil Map...7 Soil Map...8 Legend...9 Map Unit Legend...10 Map Unit Descriptions...10 Logan County, Oklahoma...13 AstA Ashport silt loam, 0 to 1 percent slopes, frequently flooded...13 CAID Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes...14 CoIC2 Coyle-Ironmound complex, 3 to 5 percent slopes, eroded...17 GraC Grainola silty clay loam, 3 to 5 percent slopes...20 GraD2 Grainola silty clay loam, 5 to 8 percent slopes, eroded...22 ICGD3 Ironmound-Coyle-Grainola complex, 5 to 8 percent slopes, severely eroded...24 IrCE Ironmound-Coyle complex, 5 to 15 percent slopes...27 KrdA Kirkland silt loam, 0 to 1 percent slopes...29 KrkB Kirkland silty clay loam, 1 to 3 percent slopes...31 NorC2 Norge silt loam, 3 to 5 percent slopes, eroded...33 RenB Renfrow silt loam, 1 to 3 percent slopes...34 RewC2 Renfrow silty clay loam, 3 to 5 percent slopes, eroded...36 RnnC2 Renthin silty clay loam, 3 to 5 percent slopes, eroded...38 TelB Teller loam, 1 to 3 percent slopes...40 ZanC2 Zaneis loam, 3 to 5 percent slopes, eroded...41 References

5 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the 5

6 individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soillandscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. 6

7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 7

8 97 35' 23'' W Custom Soil Resource Report Soil Map 97 34' 24'' W 36 5' 18'' N ' 18'' N 36 4' 15'' N ' 15'' N 97 35' 23'' W N Map Scale: 1:9,470 if printed on A portrait (8.5" x 11") sheet. Meters Feet Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 14N WGS ' 24'' W

9 MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:12,000. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Logan County, Oklahoma Survey Area Data: Version 11, Dec 23, 2013 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Miscellaneous Water Perennial Water Date(s) aerial images were photographed: 23, 2011 Feb 28, 2011 Mar Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Sinkhole Slide or Slip Sodic Spot 9

10 Map Unit Legend AstA CAID CoIC2 Logan County, Oklahoma (OK083) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Ashport silt loam, 0 to 1 percent slopes, frequently flooded Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes Coyle-Ironmound complex, 3 to 5 percent slopes, eroded GraC Grainola silty clay loam, 3 to 5 percent slopes GraD2 Grainola silty clay loam, 5 to 8 percent slopes, eroded ICGD3 IrCE KrdA Ironmound-Coyle-Grainola complex, 5 to 8 percent slopes, severely eroded Ironmound-Coyle complex, 5 to 15 percent slopes Kirkland silt loam, 0 to 1 percent slopes KrkB Kirkland silty clay loam, 1 to 3 percent slopes NorC2 RenB Norge silt loam, 3 to 5 percent slopes, eroded Renfrow silt loam, 1 to 3 percent slopes RewC2 Renfrow silty clay loam, 3 to 5 percent slopes, eroded RnnC2 Renthin silty clay loam, 3 to 5 percent slopes, eroded % % % % % % % % % % % % % TelB Teller loam, 1 to 3 percent slopes % ZanC2 Zaneis loam, 3 to 5 percent slopes, eroded % Totals for Area of Interest % Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability 10

11 of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and 11

12 relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha- Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 12

13 Logan County, Oklahoma AstA Ashport silt loam, 0 to 1 percent slopes, frequently flooded Map Unit Setting National map unit symbol: dw4y Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 40 inches Mean annual air temperature: 57 to 60 degrees F Frost-free period: 200 to 215 days Farmland classification: Not prime farmland Map Unit Composition Ashport and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ashport Setting Landform: Flood plains Down-slope shape: Linear Across-slope shape: Linear Parent material: Fine-silty alluvium Typical profile A - 0 to 11 inches: silt loam Bw - 11 to 30 inches: silt loam Ab - 30 to 36 inches: silt loam Bwb - 36 to 52 inches: silt loam Cb1-52 to 67 inches: silt loam Cb2-67 to 80 inches: silt loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Frequent Frequency of ponding: None Calcium carbonate, maximum in profile: 1 percent Available water storage in profile: High (about 12.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: B Ecological site: Loamy bottomland (R080AY050OK) Other vegetative classification: Unnamed (G080AY057OK) 13

14 Minor Components Pulaski Percent of map unit: 10 percent Landform: Flood plains Down-slope shape: Linear Across-slope shape: Linear Ecological site: Loamy bottomland pe (R084AY050OK) CAID Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes Map Unit Setting National map unit symbol: dw53 Elevation: 700 to 1,600 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 57 to 65 degrees F Frost-free period: 190 to 230 days Farmland classification: Not prime farmland Map Unit Composition Coyle and similar soils: 31 percent Ashport and similar soils: 28 percent Ironmound and similar soils: 22 percent Minor components: 19 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Coyle Setting Parent material: Loamy residuum weathered from sandstone Typical profile A - 0 to 10 inches: loam Bt1-10 to 19 inches: clay loam Bt2-19 to 36 inches: clay loam Cr - 36 to 40 inches: bedrock Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None 14

15 Frequency of ponding: None Available water storage in profile: Low (about 5.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY073OK) Description of Ashport Setting Landform: Flood plains Down-slope shape: Linear Across-slope shape: Linear Parent material: Fine-silty alluvium Typical profile A - 0 to 11 inches: silt loam Bw1-11 to 26 inches: silt loam Bw2-26 to 46 inches: loam C1-46 to 63 inches: loam C2-63 to 80 inches: stratified loamy fine sand to loam to silty clay Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Frequent Frequency of ponding: None Calcium carbonate, maximum in profile: 1 percent Available water storage in profile: High (about 12.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 5w Hydrologic Soil Group: B Ecological site: Loamy bottomland (R080AY050OK) Other vegetative classification: Unnamed (G080AY057OK) Description of Ironmound Setting Parent material: Loamy residuum weathered from sandstone and shale Typical profile A - 0 to 6 inches: loam Bw - 6 to 18 inches: loam Cr - 18 to 24 inches: bedrock 15

16 Properties and qualities Slope: 5 to 8 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 3.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: Shallow prairie (R080AY083OK) Other vegetative classification: Unnamed (G080AY080OK) Minor Components Grainola Percent of map unit: 5 percent Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY065OK) Kingfisher Percent of map unit: 5 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY073OK) Piedmont Percent of map unit: 4 percent Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY046OK) Zaneis Percent of map unit: 2 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY026OK) 16

17 Pulaski Percent of map unit: 2 percent Landform: Flood plains Down-slope shape: Linear Across-slope shape: Linear Ecological site: Loamy bottomland pe (R084AY050OK) Other vegetative classification: Unnamed (G084AY019OK) Masham Percent of map unit: 1 percent Ecological site: Shallow clay prairie pe (R080AY080OK) Other vegetative classification: Unnamed (G080AY065OK) CoIC2 Coyle-Ironmound complex, 3 to 5 percent slopes, eroded Map Unit Setting National map unit symbol: dw55 Elevation: 790 to 1,500 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 58 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: Not prime farmland Map Unit Composition Coyle, eroded, and similar soils: 61 percent Ironmound, eroded, and similar soils: 33 percent Minor components: 6 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Coyle, Eroded Setting Parent material: Loamy residuum weathered from sandstone Typical profile Ap - 0 to 11 inches: loam Bt1-11 to 26 inches: clay loam Bt2-26 to 37 inches: clay loam Cr - 37 to 40 inches: bedrock 17

18 Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 5.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY073OK) Description of Ironmound, Eroded Setting Parent material: Loamy residuum weathered from sandstone and shale Typical profile Ap - 0 to 5 inches: loam Bw - 5 to 17 inches: loam Cr - 17 to 24 inches: bedrock Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low (about 2.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4s Hydrologic Soil Group: C Ecological site: Eroded shallow prairie(obsolete) refer to 80ay083 (R080AY883OK) Other vegetative classification: Unnamed (G080AY068OK) Minor Components Masham, eroded Percent of map unit: 1 percent 18

19 Ecological site: Eroded shallow clay prairie(obsolete) refer to 80ay080 (R080AY880OK) Other vegetative classification: Unnamed (G080AY065OK) Zaneis Percent of map unit: 1 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY026OK) Grainola, eroded Percent of map unit: 1 percent Ecological site: Eroded shallow clay prairie(obsolete) refer to 80ay080 (R080AY880OK) Other vegetative classification: Unnamed (G080AY260OK) Mulhall, eroded Percent of map unit: 1 percent Landform: Hillslopes Across-slope shape: Concave Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY017OK) Piedmont, eroded Percent of map unit: 1 percent Ecological site: Eroded claypan prairie (north) (obsolete) refer to 80ay010 (R080AY810OK) Other vegetative classification: Unnamed (G080AY065OK) Kingfisher, eroded Percent of map unit: 1 percent Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY073OK) 19

20 GraC Grainola silty clay loam, 3 to 5 percent slopes Map Unit Setting National map unit symbol: dw5y Elevation: 700 to 1,600 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 57 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: All areas are prime farmland Map Unit Composition Grainola and similar soils: 88 percent Minor components: 12 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Grainola Setting Parent material: Calcareous clayey residuum weathered from shale Typical profile A - 0 to 5 inches: silty clay loam Btk1-5 to 18 inches: silty clay Btk2-18 to 27 inches: silty clay BCk - 27 to 32 inches: clay Cr - 32 to 42 inches: bedrock Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 10 percent Available water storage in profile: Low (about 5.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: D Ecological site: Claypan prairie (R080AY010OK) 20

21 Other vegetative classification: Unnamed (G080AY065OK) Minor Components Renthin Percent of map unit: 5 percent Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY044OK) Ironmound Percent of map unit: 3 percent Ecological site: Shallow prairie (R080AY083OK) Other vegetative classification: Unnamed (G080AY080OK) Mulhall Percent of map unit: 2 percent Landform: Hillslopes Across-slope shape: Concave Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY017OK) Coyle Percent of map unit: 1 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY018OK) Masham Percent of map unit: 1 percent Ecological site: Shallow clay prairie pe (R080AY080OK) Other vegetative classification: Unnamed (G080AY065OK) 21

22 GraD2 Grainola silty clay loam, 5 to 8 percent slopes, eroded Map Unit Setting National map unit symbol: dw5z Elevation: 700 to 1,500 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 57 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: Not prime farmland Map Unit Composition Grainola, eroded, and similar soils: 89 percent Minor components: 11 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Grainola, Eroded Setting Parent material: Calcareous clayey residuum weathered from shale Typical profile A - 0 to 4 inches: silty clay loam Btk - 4 to 26 inches: silty clay BCk - 26 to 38 inches: silty clay Cr - 38 to 48 inches: bedrock Properties and qualities Slope: 5 to 8 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 10 percent Available water storage in profile: Low (about 5.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: D Ecological site: Eroded claypan prairie (north) (obsolete) refer to 80ay010 (R080AY810OK) Other vegetative classification: Unnamed (G080AY065OK) 22

23 Minor Components Renthin, eroded Percent of map unit: 5 percent Ecological site: Eroded claypan prairie (north) (obsolete) refer to 80ay010 (R080AY810OK) Other vegetative classification: Unnamed (G080AY055OK) Ironmound, eroded Percent of map unit: 3 percent Ecological site: Eroded shallow prairie(obsolete) refer to 80ay083 (R080AY883OK) Other vegetative classification: Unnamed (G080AY068OK) Coyle, eroded Percent of map unit: 1 percent Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY073OK) Masham, eroded Percent of map unit: 1 percent Ecological site: Eroded shallow clay prairie(obsolete) refer to 80ay080 (R080AY880OK) Other vegetative classification: Unnamed (G080AY264OK) Mulhall, eroded Percent of map unit: 1 percent Landform: Hillslopes Across-slope shape: Concave Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY017OK) 23

24 ICGD3 Ironmound-Coyle-Grainola complex, 5 to 8 percent slopes, severely eroded Map Unit Setting National map unit symbol: dw65 Elevation: 700 to 1,500 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 57 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: Not prime farmland Map Unit Composition Ironmound, severely eroded, and similar soils: 40 percent Coyle, severely eroded, and similar soils: 30 percent Grainola, severely eroded, and similar soils: 15 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ironmound, Severely Eroded Setting Parent material: Loamy residuum weathered from sandstone and shale Typical profile Ap - 0 to 5 inches: loam Bw - 5 to 12 inches: loam Cr - 12 to 20 inches: bedrock Properties and qualities Slope: 5 to 8 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low (about 2.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: Eroded shallow prairie(obsolete) refer to 80ay083 (R080AY883OK) Other vegetative classification: Unnamed (G080AY068OK) 24

25 Description of Coyle, Severely Eroded Setting Parent material: Loamy residuum weathered from sandstone Typical profile Ap - 0 to 8 inches: loam Bt1-8 to 21 inches: clay loam Bt2-21 to 35 inches: clay loam Cr - 35 to 40 inches: bedrock Properties and qualities Slope: 5 to 8 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 5.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: B Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY073OK) Description of Grainola, Severely Eroded Setting Parent material: Calcareous clayey residuum weathered from shale Typical profile A - 0 to 4 inches: clay loam Bt1-4 to 22 inches: clay Bt2-22 to 34 inches: clay Cr - 34 to 40 inches: bedrock Properties and qualities Slope: 5 to 8 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches 25

26 Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 10 percent Available water storage in profile: Low (about 4.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: D Ecological site: Eroded claypan prairie (north) (obsolete) refer to 80ay010 (R080AY810OK) Other vegetative classification: Unnamed (G080AY065OK) Minor Components Zaneis Percent of map unit: 5 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY026OK) Masham, severely eroded Percent of map unit: 3 percent Ecological site: Eroded shallow clay prairie(obsolete) refer to 80ay080 (R080AY880OK) Other vegetative classification: Unnamed (G080AY264OK) Kingfisher, severely eroded Percent of map unit: 3 percent Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY026OK) Renthin, severely eroded Percent of map unit: 2 percent Ecological site: Eroded claypan prairie (north) (obsolete) refer to 80ay010 (R080AY810OK) Other vegetative classification: Unnamed (G080AY055OK) Mulhall, severely eroded Percent of map unit: 2 percent Landform: Hillslopes 26

27 Across-slope shape: Concave Ecological site: Eroded loamy prairie(obsolete) refer to 80ay056 (R080AY856OK) Other vegetative classification: Unnamed (G080AY017OK) IrCE Ironmound-Coyle complex, 5 to 15 percent slopes Map Unit Setting National map unit symbol: dw66 Elevation: 700 to 1,600 feet Mean annual precipitation: 26 to 40 inches Mean annual air temperature: 57 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: Not prime farmland Map Unit Composition Ironmound and similar soils: 53 percent Coyle and similar soils: 22 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ironmound Setting Parent material: Loamy residuum weathered from sandstone and shale Typical profile A - 0 to 6 inches: fine sandy loam Bw - 6 to 15 inches: fine sandy loam Cr - 15 to 20 inches: bedrock Properties and qualities Slope: 5 to 15 percent Depth to restrictive feature: 10 to 20 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low (about 2.2 inches) 27

28 Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: C Ecological site: Shallow prairie (R080AY083OK) Other vegetative classification: Unnamed (G080AY213OK) Description of Coyle Setting Parent material: Loamy residuum weathered from sandstone Typical profile A - 0 to 8 inches: loam Bt1-8 to 16 inches: clay loam Bt2-16 to 26 inches: clay loam Cr - 26 to 40 inches: bedrock Properties and qualities Slope: 8 to 12 percent Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low (about 4.3 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6e Hydrologic Soil Group: B Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY100OK) Minor Components Kingfisher Percent of map unit: 5 percent Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY073OK) Zaneis Percent of map unit: 5 percent 28

29 Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY026OK) Grainola Percent of map unit: 5 percent Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY006OK) Mulhall Percent of map unit: 4 percent Landform: Hillslopes Across-slope shape: Concave Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY017OK) Piedmont Percent of map unit: 4 percent Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY046OK) Masham Percent of map unit: 2 percent Ecological site: Shallow clay prairie pe (R080AY080OK) Other vegetative classification: Unnamed (G080AY005OK) KrdA Kirkland silt loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2rj95 Elevation: 880 to 1,340 feet Mean annual precipitation: 26 to 38 inches Mean annual air temperature: 57 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: All areas are prime farmland 29

30 Map Unit Composition Kirkland and similar soils: 80 percent Minor components: 20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kirkland Setting Landform: Plains on paleoterraces Landform position (three-dimensional): Tread, talf Down-slope shape: Linear, convex Across-slope shape: Linear Parent material: Clayey alluvium derived from sedimentary rock Typical profile Ap - 0 to 8 inches: silt loam Bt - 8 to 19 inches: silty clay Btss - 19 to 28 inches: silty clay Btkss - 28 to 51 inches: silty clay Btk - 51 to 82 inches: silty clay 2Cr - 82 to 98 inches: silt loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 5 percent Gypsum, maximum in profile: 2 percent Salinity, maximum in profile: Nonsaline to very slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 12.0 Available water storage in profile: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): 2s Land capability classification (nonirrigated): 2s Hydrologic Soil Group: D Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY044OK) Minor Components Bethany Percent of map unit: 5 percent Landform: Plains on paleoterraces Landform position (three-dimensional): Tread, talf Down-slope shape: Linear, convex Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY044OK) 30

31 Pawhuska Percent of map unit: 5 percent, summit Landform position (three-dimensional): Side slope, talf Down-slope shape: Linear, convex Ecological site: Slickspot (R080AY091OK) Other vegetative classification: Unnamed (G080AY999OK) Norge Percent of map unit: 5 percent Landform: Paleoterraces Landform position (three-dimensional): Riser Across-slope shape: Linear Ecological site: Loamy prairie (R080AY056OK) Other vegetative classification: Unnamed (G080AY017OK) Renfrow Percent of map unit: 5 percent Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Side slope Across-slope shape: Linear Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY044OK) KrkB Kirkland silty clay loam, 1 to 3 percent slopes Map Unit Setting National map unit symbol: dw6f Elevation: 800 to 1,600 feet Mean annual precipitation: 26 to 38 inches Mean annual air temperature: 58 to 64 degrees F Frost-free period: 190 to 230 days Farmland classification: All areas are prime farmland Map Unit Composition Kirkland and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kirkland Setting Landform: Plains on paleoterraces Landform position (three-dimensional): Rise 31

32 Across-slope shape: Linear Parent material: Clayey alluvium over clayey residuum weathered from calcareous shale Typical profile Ap - 0 to 9 inches: silty clay loam Bt1-9 to 34 inches: silty clay Bt2-34 to 48 inches: silty clay Bt3-48 to 57 inches: silty clay BC - 57 to 82 inches: silty clay 2Cr - 82 to 98 inches: bedrock Properties and qualities Slope: 1 to 3 percent Depth to restrictive feature: 60 to 99 inches to paralithic bedrock Natural drainage class: Well drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 2 percent Gypsum, maximum in profile: 2 percent Salinity, maximum in profile: Nonsaline to very slightly saline (2.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 16.0 Available water storage in profile: Moderate (about 8.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: D Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY055OK) Minor Components Renthin Percent of map unit: 4 percent Landform position (two-dimensional): Shoulder Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY046OK) Huska Percent of map unit: 4 percent Landform position (two-dimensional): Shoulder Ecological site: Slickspot (R080AY091OK) Other vegetative classification: Unnamed (G080AY999OK) Piedmont Percent of map unit: 2 percent 32

33 Landform position (two-dimensional): Shoulder Ecological site: Claypan prairie (R080AY010OK) Other vegetative classification: Unnamed (G080AY065OK) NorC2 Norge silt loam, 3 to 5 percent slopes, eroded Map Unit Setting National map unit symbol: dw74 Elevation: 850 to 1,200 feet Mean annual precipitation: 32 to 40 inches Mean annual air temperature: 58 to 63 degrees F Frost-free period: 200 to 230 days Farmland classification: Not prime farmland Map Unit Composition Norge, eroded, and similar soils: 88 percent Minor components: 12 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Norge, Eroded Setting Landform: Paleoterraces Landform position (three-dimensional): Riser Parent material: Loamy alluvium Typical profile Ap - 0 to 8 inches: silt loam Bt1-8 to 15 inches: silty clay loam Bt2-15 to 33 inches: silty clay loam Bt3-33 to 43 inches: silty clay loam Bt4-43 to 65 inches: silty clay loam C - 65 to 80 inches: clay loam Properties and qualities Slope: 3 to 5 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 2 percent 33